如何在TServerSocket中使用SO_KEEPALIVE?

问题描述

该组件是否具有set选项属性，或者我需要使用setsockopt函数?

Does the component has a set option property or i need to use setsockopt function ?

我想启用Keep-alive内置的操作系统，而不必自己编写... -.-"

i want to enable the os built in Keep-alive instead of me having to write it myself... -.-"

所以，我的问题是，在我创建TServerSocket实例的构造函数内部，然后如何启用此SO_KEEPALIVE选项?

so, my question is, inside the constructor where i create the instance of TServerSocket, how do i then enable this SO_KEEPALIVE option ?

感谢大家.

推荐答案

您可以使用setsockopt设置SO_KEEPALIVE

You can use setsockopt to set SO_KEEPALIVE

implementation

uses
  WinSock;

{$R *.dfm}

procedure TForm2.ClientConnect(Sender: TObject; Socket: TCustomWinSocket);
var
  OptVal: DWORD;
begin
  OptVal := 1;
  if setsockopt(Socket.SocketHandle, SOL_SOCKET, SO_KEEPALIVE, PAnsiChar(@OptVal), SizeOf(OptVal)) = SOCKET_ERROR then
    raise Exception.Create(Format('WinSock Error %d', [WSAGetLastError()]));
end;

procedure TForm2.FormCreate(Sender: TObject);
begin
 s := TServersocket.Create(Self);
 s.Port := 8090;
 s.OnClientConnect := ClientConnect;
 s.Open;
end;

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